If he finds out who kidnapped her, Zhou Xi would definitely be sent to prison by him, and at the very least, she'd be locked away for several years, perhaps even suffering a great deal.
Thinking of Zhou Mother's protective instincts toward her son, Lin Xinlan couldn't bear to upset her.
Empathy is tough, if Xiaocong did something wrong and had to be punished, even if she believed he deserved it, she would do everything possible to protect him and minimize his suffering.
This is a mother's love, selfish yet magnificent.
No matter what, since she promised not to pursue the matter, she wouldn't go back on her word and let Zhou Xi be punished.
"Rong Shaoze, I know you can't let this go. But since I was the one kidnapped, and I'm not pursuing it, you should let it go too. I promised them I wouldn't follow up on this, so no matter how much you ask, I won't say who it was."